<template>
    <div>
        <button @click="isShow = !isShow">显示/隐藏</button>
        <!-- 
            appear : 一上来执行一次
            enter-active-class:进入样式
            leave-active-class：离开样式
         -->
        <transition-group 
            appear
            name="animate__animated animate__bounce" 
            enter-active-class="animate__swing" 
            leave-active-class="animate__backOutUp"
        >
            <h1 v-show="!isShow" key="1">你好啊</h1>
            <h1 v-show="isShow" key="2">徐凤年</h1>
        </transition-group>
    </div>
</template>

<script>
// 引入css样式库
import 'animate.css';

export default {
    name:'Test2',
    data(){
        return {
            isShow : true,
        }
    }
}
</script>

<style scoped>
    h1{
        background-color: orange;
        
    }

   

 
</style>